RJ

Randolph W. Johnson

AT AT&T: 1 patents #10,626 of 18,772Top 60%
📍 Northbrook, IL: #313 of 772 inventorsTop 45%
🗺 Illinois: #34,584 of 84,256 inventorsTop 45%
Overall (All Time): #2,285,015 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5394540 System for testing a network component by selectively modifying messages received from the component and returning to a simulator Terrence K. Barrington, Sandra Lynn Carrico, Joseph W. Davison, Scott A. Mardis, Steven D. Raiman 1995-02-28
4688209 Method and apparatus for looping around a digital transmission line at a channel unit Frederick J. Banzi, Jr., Michael J. Dugan, Douglas Saylor, Craig A. Sharper 1987-08-18